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Homogeneous mixture of two or more substances.

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    If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.

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    The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...



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Structural Isomers

Compounds that contain the same number of the same kinds of atoms in different geometric arrangements.

Line Spectrum

An atomic emission or absorption spectrum.

Photochemical Oxidants

Photochemically produced oxidizing agents capable of causing damage to plants and animals.

Actual Yield

Amount of a specified pure product actually obtained from a given reaction. Compare with Theoretical Yield.

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Liquid Aerosol

Colloidal suspension of liquid in gas.

Capillary Action

The drawing of a liquid up the inside of a small-bore tube when adhesive forces exceed cohesive forces, or the depression of the surface of the liquid when cohesive forces exceed the adhesive forces.

Alkylbenzene

A compound containing an alkyl group bonded to a benzene ring.

Chemical Periodicity

The variations in properties of elements with their position in the periodic table.

Dipole-dipole Interactions

Attractive interactions between polar molecules, that is, between molecules with permanent dipoles.